>If some subscribers want to start a Usernet News group, isn't the first>question whether everyone who needs the information could still receive it.>I find that lots of articles belonging to US news groups can not be accessed>by our news server here at the University of Amsterdam.

There is no such thing as a "US news group", except obvious local domain
ones such as ba (San Francisco Bay Area), etc. What groups can't you get?
What does your network administrator say?